1 files changed, 103 insertions, 0 deletions
diff --git a/source4/heimdal/lib/krb5/salt-aes.c b/source4/heimdal/lib/krb5/salt-aes.c
new file mode 100644
index 0000000000..1c40b54f6b
--- /dev/null
+++ b/source4/heimdal/lib/krb5/salt-aes.c
@@ -0,0 +1,103 @@
+/*
+ * Copyright (c) 1997 - 2008 Kungliga Tekniska Högskolan
+ * (Royal Institute of Technology, Stockholm, Sweden).
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * 3. Neither the name of the Institute nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include "krb5_locl.h"
+
+int _krb5_AES_string_to_default_iterator = 4096;
+
+static krb5_error_code
+AES_string_to_key(krb5_context context,
+		  krb5_enctype enctype,
+		  krb5_data password,
+		  krb5_salt salt,
+		  krb5_data opaque,
+		  krb5_keyblock *key)
+{
+    krb5_error_code ret;
+    uint32_t iter;
+    struct encryption_type *et;
+    struct key_data kd;
+
+    if (opaque.length == 0)
+	iter = _krb5_AES_string_to_default_iterator;
+    else if (opaque.length == 4) {
+	unsigned long v;
+	_krb5_get_int(opaque.data, &v, 4);
+	iter = ((uint32_t)v);
+    } else
+	return KRB5_PROG_KEYTYPE_NOSUPP; /* XXX */
+
+    et = _krb5_find_enctype(enctype);
+    if (et == NULL)
+	return KRB5_PROG_KEYTYPE_NOSUPP;
+
+    kd.schedule = NULL;
+    ALLOC(kd.key, 1);
+    if(kd.key == NULL) {
+	krb5_set_error_message (context, ENOMEM, N_("malloc: out of memory", ""));
+	return ENOMEM;
+    }
+    kd.key->keytype = enctype;
+    ret = krb5_data_alloc(&kd.key->keyvalue, et->keytype->size);
+    if (ret) {
+	krb5_set_error_message (context, ret, N_("malloc: out of memory", ""));
+	return ret;
+    }
+
+    ret = PKCS5_PBKDF2_HMAC_SHA1(password.data, password.length,
+				 salt.saltvalue.data, salt.saltvalue.length,
+				 iter,
+				 et->keytype->size, kd.key->keyvalue.data);
+    if (ret != 1) {
+	_krb5_free_key_data(context, &kd, et);
+	krb5_set_error_message(context, KRB5_PROG_KEYTYPE_NOSUPP,
+			       "Error calculating s2k");
+	return KRB5_PROG_KEYTYPE_NOSUPP;
+    }
+
+    ret = _krb5_derive_key(context, et, &kd, "kerberos", strlen("kerberos"));
+    if (ret == 0)
+	ret = krb5_copy_keyblock_contents(context, kd.key, key);
+    _krb5_free_key_data(context, &kd, et);
+
+    return ret;
+}
+
+struct salt_type _krb5_AES_salt[] = {
+    {
+	KRB5_PW_SALT,
+	"pw-salt",
+	AES_string_to_key
+    },
+    { 0 }
+};